“In regards to the comment on tonight’s @teenmom episode insinuating Bristol is anything other than a great mother is deeply regretted on my part,” Meyer, 30, captioned a photo of himself paintballing with Bristol, 28, and her son Tripp Palin — whom she shares with ex-fiancé Levi Johnston — on Monday, December 17. “Looking back and seeing my behavior does not represent the man I strive to be. Going forward I have made the commitment to Bristol to work towards a better relationship and putting our children’s best interests before my own.”

In a followup post on Tuesday, December 18, the Afghanistan veteran — who split from Bristol in February — posted a photo of himself in a hospital bed and revealed that he suffers from anxiety. (He has previously spoken out about this struggle with PTSD.)

While the MTV star didn’t respond to Meyer’s remarks, she posted her own message about the show at the time and expressed her disapproval. “If I cared what people thought of me, I wouldn’t be here today — let’s be real. I’ve stood strong and held it down for my kids since day one. No matter how bad @teenmom tries to portray my ‘life’ … my babies, my family, my close friends — they know the truth,” she captioned a photo with Tripp and her daughters with Meyer, Sailor, 2, and Atlee, 19 months. “I’m a pretty great mom, work my ass off, show up, and hustle everyday to give my kids a pretty great life.”

She added: “@mtv doesn’t want to talk about faith, show work ethic, or juggling three kids alone, they don’t want to show the humble process of starting over after a divorce, building a career, or any real issues. All they want with my little segment each week is some fake fill-in Farrah Abraham/Jerry Springer BS, and it’s simply not true.”

Bristol confirmed in July that she’d be joining Teen Mom OG for season 7.